Phase formation and stability of Ag–60 at%Cu alloy nanoparticles synthesized by chemical routes in aqueous media

2017 ◽  
Vol 19 (41) ◽  
pp. 28006-28013
Author(s):  
Kirtiman Deo Malviya ◽  
Chandan Srivastava ◽  
Kamanio Chattopadhyay
Keyword(s):  
Aqueous Medium ◽  
Phase Formation ◽  
Metal Salt ◽  
Aqueous Media ◽  
Alloy Nanoparticles ◽  
Cu Alloy ◽  
Co Reduction

The present work reports the nature of the evolution of an array of nanoparticles during the synthesis of alloy nanoparticles of Ag–60 at%Cu by the co-reduction of metal salt precursors using NaBH4 in an aqueous medium.

Bimetallic Ag–Cu alloy nanoparticles as a highly active catalyst for the enamination of 1,3-dicarbonyl compounds

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 49923-49940 ◽  
Author(s):  
Lipeeka Rout ◽  
Aniket Kumar ◽  
Rajendra S. Dhaka ◽  
Priyabrat Dash
Keyword(s):  
Reduction Method ◽  
Active Catalyst ◽  
Alloy Nanoparticles ◽  
Dicarbonyl Compounds ◽  
Highly Active ◽  
Cu Alloy ◽  
Co Reduction

Bimetallic Ag–Cu alloy nanoparticles were obtained via a simple co-reduction method, which exhibited significantly improved activity for the synthesis of β-enaminones and β-enaminoesters compared with their monometallic counterparts.

LSPR and SAXS studies of starch stabilized Ag–Cu alloy nanoparticles

2011 ◽  
Vol 384 (1-3) ◽  
pp. 668-674 ◽  
Author(s):  
Manjeet Singh ◽  
I. Sinha ◽  
A.K. Singh ◽  
R.K. Mandal
Keyword(s):  
Alloy Nanoparticles ◽  
Cu Alloy

Ordered phase formation in Sm-Co1−Cu and Er-Co1−Cu alloy films prepared on Cr(100) single-crystal underlayer

2019 ◽  
Vol 482 ◽  
pp. 75-78
Author(s):  
Mitsuru Ohtake ◽  
Kana Serizawa ◽  
Masaaki Futamoto ◽  
Fumiyoshi Kirino ◽  
Nobuyuki Inaba
Keyword(s):  
Single Crystal ◽  
Phase Formation ◽  
Alloy Films ◽  
Cu Alloy

scholarly journals Structure and Catalytic Behavior of Alumina Supported Bimetallic Au-Rh Nanoparticles in the Reduction of NO by CO

Catalysts ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 937 ◽  
Author(s):  
Wang ◽  
Wang ◽  
Maeda ◽  
Baiker
Keyword(s):  
Bimetallic Catalyst ◽  
Metal Salt ◽  
Surface Region ◽  
Molar Ratio ◽  
Reduction Of No ◽  
Surface Population ◽  
Adsorption Of Co ◽  
Enhanced Adsorption ◽  
Co Reduction ◽  
Al2o3 Catalyst

Alumina-supported bimetallic AuRh catalysts, as well as monometallic reference catalysts, were examined with regard to their structural and catalytic properties in the reduction of NO by CO. Depending on the molar ratio of Au:Rh, the nanoparticles prepared by borohydride co-reduction of corresponding metal salt solutions had a size of 3.5–6.7 nm. The particles consisted of well-dispersed noble metal atoms with some enrichment of Rh in their surface region. NO conversion of AuRh/Al2O3 shifted to lower temperatures with increasing Rh content, reaching highest activity and highest N2 selectivity for the monometallic Rh/Al2O3 catalyst. This behavior is attributed to the enhanced adsorption of CO on the bimetallic catalyst resulting in unfavorable cationic Rh clusters Rh+-(CO)2. Doping with ceria of AuRh/Al2O3 and Rh/Al2O3 catalysts increased the surface population of metallic Rh sites, which are considered most active for the reduction of NO by CO and enhancement of the formation of intermediate isocyanate (-NCO) surface species and their reaction with NO to form N2 and CO2.

Preparation and growth of Ni–Cu alloy nanoparticles prepared by arc plasma evaporation

2010 ◽  
Vol 64 (10) ◽  
pp. 1229-1231 ◽  
Author(s):  
A.J. Song ◽  
M.Z. Ma ◽  
W.G. Zhang ◽  
H.T. Zong ◽  
S.X. Liang ◽  
...  
Keyword(s):  
Alloy Nanoparticles ◽  
Arc Plasma ◽  
Cu Alloy

scholarly journals Synthesis of Functionalized Dihydropyrido[2,3-d]pyrimidines in Aqueous Medium

SynOpen ◽  
2018 ◽  
Vol 02 (01) ◽  
pp. 0001-0005 ◽  
Author(s):  
Saeed Balalaie ◽  
Hamed Esmaeilabadi ◽  
Saber Mehrparvar ◽  
Frank Rominger ◽  
Fatima Hamdan ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Aqueous Media ◽  
Aromatic Aldehydes ◽  
Cascade Reaction ◽  
Hydrogen Phosphate ◽  
Diammonium Hydrogen Phosphate ◽  
Diammonium Hydrogen

Synthesis of functionalized 2,3-dihydropyrido[2,3-d]pyrimidin-4(1H)-one from a cascade reaction between 3-formylchromone, malononitrile, diammonium hydrogen phosphate, and aromatic aldehydes in aqueous media is described.

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